[PATCH v5 04/21] arm64: Provide an 'upgrade to VHE' stub hypercall

[Catalin Marinas]

On Mon, Jan 25, 2021 at 10:50:02AM +0000, Marc Zyngier wrote:
> As we are about to change the way a VHE system boots, let's
> provide the core helper, in the form of a stub hypercall that
> enables VHE and replicates the full EL1 context at EL2, thanks
> to EL1 and VHE-EL2 being extremely similar.
> 
> On exception return, the kernel carries on at EL2. Fancy!
> 
> Nothing calls this new hypercall yet, so no functional change.
> 
> Signed-off-by: Marc Zyngier <maz at kernel.org>
> Acked-by: David Brazdil <dbrazdil at google.com>

Acked-by: Catalin Marinas <catalin.marinas at arm.com>